{"id":695861,"date":"2026-06-03T05:56:04","date_gmt":"2026-06-03T05:56:04","guid":{"rendered":"https:\/\/microscopemedia.com\/?p=695861"},"modified":"2026-06-03T05:56:04","modified_gmt":"2026-06-03T05:56:04","slug":"o-specie-clona-a-supravietuit-100-000-de-ani-fara-masculi-oamenii-de-stiinta-credeau-ca-e-moarta-de-mult","status":"publish","type":"post","link":"https:\/\/microscopemedia.com\/?p=695861","title":{"rendered":"O specie clon\u0103 a supravie\u021buit 100.000 de ani f\u0103r\u0103 masculi. Oamenii de \u0219tiin\u021b\u0103 credeau c\u0103 e moart\u0103 de mult"},"content":{"rendered":"<div><img decoding=\"async\" src=\"https:\/\/microscopemedia.com\/wp-content\/uploads\/2026\/06\/o-specie-clona-a-supravietuit-100-000-de-ani-fara-masculi-oamenii-de-stiinta-credeau-ca-e-moarta-de-mult.png\" class=\"ff-og-image-inserted\"><\/div>\n<div readability=\"41.608141447368\">\n<p id=\"p-0\">Speciile formate exclusiv din femele au fost considerate mult timp ca fiind ni\u0219te finaluri ale evolu\u021biei. Azi oamenii de \u0219tiin\u021b\u0103 se \u00eentreab\u0103 cum a reu\u0219it un pe\u0219te s\u0103 supravie\u021buiasc\u0103 timp de 100.000 de ani f\u0103r\u0103 masculi. R\u0103spunsul const\u0103 \u00een dezv\u0103luirea unor noi perspective asupra modului \u00een care natura men\u021bine genomurile s\u0103n\u0103toase.<\/p>\n<h2 id=\"chapter-0\">Pe\u0219tele Amazon Molly produce doar femele, fiecare fiind o clon\u0103<\/h2>\n<p id=\"p-1\">\u00cen r\u00e2urile din Mexic \u0219i sudul Texasului \u00eenoat\u0103 un pe\u0219te care, teoretic, nu ar trebui s\u0103 existe. \u00cen apele calde \u0219i lente, pe\u0219tele plute\u0219te \u00een deriv\u0103 printre bancurile sale formate exclusiv din femele, solzii ei argintii ating\u00e2nd masculii unor specii str\u00e2ns \u00eenrudite. Aici \u00ee\u0219i alege un partener. Dar, \u00eentr-o r\u0103sturnare evolutiv\u0103 neobi\u0219nuit\u0103, genele lui nu joac\u0103 niciun rol \u00een urma\u0219ii ei. Acesta este un \u201ejaf biologic\u201d cunoscut sub numele de ginogenez\u0103, \u00een care ea folose\u0219te sperma masculului doar pentru a declan\u0219a dezvoltarea ovulului, dar \u00eei elimin\u0103 rapid ADN-ul. Ea produce doar femeie, fiecare fiind o<a href=\"https:\/\/www.ichthyologie.de\/how-a-clonal-fish-avoids-genetic-decay\/?lang=en\" target=\"_blank\" rel=\"noopener\"> clon\u0103<\/a> a sa.<\/p>\n<h2 id=\"chapter-1\">Teoria evolu\u021bionist\u0103 sugereaz\u0103 c\u0103 speciile asexuate ar trebui s\u0103 dispar\u0103 rapid<\/h2>\n<p id=\"p-2\">Acest pe\u0219te este pe\u0219tele Amazon Molly, numit dup\u0103 tribul de r\u0103zboinici forma\u021bi exclusiv din femei din mitologia greac\u0103, \u0219i i-a nedumerit pe oamenii de \u0219tiin\u021b\u0103 de aproape un secol. Teoria evolu\u021bionist\u0103 sugereaz\u0103 c\u0103 speciile asexuate ar trebui s\u0103 dispar\u0103 rapid, deoarece f\u0103r\u0103 sex, muta\u021biile d\u0103un\u0103toare se acumuleaz\u0103 \u00een genomurile lor \u00een timp. \u00cens\u0103 aceast\u0103 specie, format\u0103 exclusiv din femele, a d\u0103inuit timp de aproximativ 100.000 de ani, scrie <a href=\"https:\/\/www.bbc.com\/future\/article\/20260601-amazon-molly-the-fish-thats-lived-for-100000-years-without-males\" target=\"_blank\" rel=\"noopener\">BBC<\/a>.<\/p>\n<p id=\"p-3\">Conform g\u00e2ndirii conven\u021bionale, ar fi trebuit s\u0103 fie o mic\u0103 excep\u021bie \u00een arborele vie\u021bii. Totu\u0219i, aceast\u0103 creatur\u0103 mic\u0103 \u0219i modest\u0103 d\u0103inuie.<\/p>\n<p id=\"p-4\">Cum a supravie\u021buit mierla de Amazon c\u00e2nd teoria sugereaz\u0103 c\u0103 ar trebui s\u0103 fi disp\u0103rut de mult? Pe m\u0103sur\u0103 ce noi cercet\u0103ri \u00eencep s\u0103 dezlege acest mister, oamenii de \u0219tiin\u021b\u0103 descoper\u0103 c\u0103 speciile asexuate ar putea fi mai rezistente dec\u00e2t se credea odinioar\u0103 \u2013 contest\u00e2nd ideea de mult timp sus\u021binut\u0103 c\u0103 via\u021ba f\u0103r\u0103 sex este sortit\u0103 e\u0219ecului.<\/p>\n<p id=\"p-5\">&nbsp;<\/p>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Speciile formate exclusiv din femele au fost considerate mult timp ca fiind ni\u0219te finaluri ale evolu\u021biei. Azi oamenii de \u0219tiin\u021b\u0103 se \u00eentreab\u0103 cum a reu\u0219it un pe\u0219te s\u0103 supravie\u021buiasc\u0103 timp &hellip; <a href=\"https:\/\/microscopemedia.com\/?p=695861\" class=\"more-link\">Read More<\/a><\/p>\n","protected":false},"author":1,"featured_media":695862,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"Default","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts\/695861"}],"collection":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=695861"}],"version-history":[{"count":0,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/posts\/695861\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=\/wp\/v2\/media\/695862"}],"wp:attachment":[{"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=695861"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=695861"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/microscopemedia.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=695861"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}